An Optimal Design Method for the Minimization of Cogging Torques of a Permanent Magnet Motor Using FEM and Genetic Algorithm

2010 ◽  
Vol 20 (3) ◽  
pp. 861-864 ◽  
Author(s):  
S L Ho ◽  
Ningning Chen ◽  
W N Fu
Keyword(s):  
Genetic Algorithm ◽  
Optimal Design ◽  
Permanent Magnet ◽  
Design Method ◽  
Permanent Magnet Motor ◽  
Optimal Design Method

Optimal design method with thermomagnetic field coupling analysis for miniaturization of permanent magnet synchronous motor

2013 ◽  
Vol 183 (2) ◽  
pp. 29-38
Author(s):  
Hideki Kitamura ◽  
Norihisa Iwasaki ◽  
Masashi Kitamura ◽  
Hideaki Mori ◽  
Masahide Yamasaki ◽  
...  
Keyword(s):  
Optimal Design ◽  
Permanent Magnet ◽  
Design Method ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Coupling Analysis ◽  
Field Coupling ◽  
Optimal Design Method

Optimal Design for Broadband Dynamic Damper

2012 ◽  
Vol 490-495 ◽  
pp. 2723-2727
Author(s):  
Yan Ting Ai ◽  
Jing Tian ◽  
Qi Fu ◽  
Feng Ling Zhang
Keyword(s):  
Genetic Algorithm ◽  
Optimal Design ◽  
Frequency Ratio ◽  
Design Method ◽  
Damping Ratio ◽  
Excitation Frequency ◽  
Linear Dynamic ◽  
Dynamic Absorber ◽  
Optimal Design Method ◽  
Definition Of

This paper presents a new optimal design method based on genetic algorithm（GA）for broadband linear dynamic absorber. A New definition of the suppression bandwidth is described firstly. Then the method and procedure to optimize multi-parameters of broadband dynamic absorber is proposed. Effects of the natural frequency ratio, excitation frequency ratio, mass ratio, main system damping ratio and absorber ratio on the suppression bandwidth are discussed systematically. Finally the merits of genetic algorithm used for broadband linear dynamic absorber design are illustrated by contrasting it to a numerical method.

scholarly journals Research on Internal and External Split Ratio of Double-Sided Rotor Permanent Magnet Motor Based on Copper Consumption Density and Current Density

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Kai Liu ◽  
Bingyi Zhang ◽  
Guihong Feng
Keyword(s):  
Optimal Design ◽  
Permanent Magnet ◽  
Current Density ◽  
Heat Dissipation ◽  
Design Method ◽  
Electromagnetic Torque ◽  
Analysis Model ◽  
Split Ratio ◽  
Optimal Design Method ◽  
Short Time

In the traditional split ratio optimization of double-sided rotor permanent magnet motors (DSRPMM), the typical thermal constraint condition is that the total copper consumption of the motor is fixed. This method can only constrain the overall temperature rise of the motor to a certain extent, but it is limited to restrain the local short-time heating of the winding. On the basis of the heat dissipation mode and external size of the motor, an optimal design method of the split ratio based on copper consumption density and current density is presented in this paper. The method restricts the whole heating of the motor and the local short-time heating of the winding by limiting the copper consumption density and current density. The thermal is used as the electromagnetic torque boundary. By analyzing the relationship between the electromagnetic torque and the split ratio, the expression of the optimal split ratio based on the maximum electromagnetic torque is derived. The analysis model is established by using the finite element tool, and the accuracy of the expression is proved. Based on the analysis results, a DSRPMM prototype is made and the experimental test is carried out. The experimental results of the prototype demonstrate the accuracy of the optimal design method of the split ratio based on copper consumption density and current density. The research of this paper provides a theoretical basis for improving the accuracy and reliability of the DSRPMM design.

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